WHAT YOU NEED: A whiteboard, ruler, pen and calculator. Image caption, STEP 1 - DRAW TWO BARS: Write out the problem and circle the key pieces of information. Here it is the fraction, 13/20, and what ...

Percentage Formula: Percentages are a fundamental concept in maths, used frequently in daily life. It represents parts of a whole as fractions of 100. They're symbolised by the "%" symbol.

Oo! That looked like it hurt. Oh well, that's one problem solved. Now for another. The big dinosaur is 300cm long and the little dinosaur was 12% of that. So, how long is she? Where is that little ...